All of my machines are now at 1511, and none are showing ill-effects of any kind. The Lenovo G780 was last to convert and it did so without complaining.
In all honesty, I don’t think that any of the new improved features are going to impact the user base here, but I prefer computers to be up to date, not lagging behind.
There are other ‘family’ machines needing my attention, but they have to be made available first. One of them make come into radar range today, and the others? Who knows.. 🙁